all those items are GWPs. They have this a lot here in China. Unfortunately I
don't have more information as I buy them all second hand on a platform like
Craigslist. They are all genuine items for sure. The all come with a little paper
( you can see an example of this at the golden plate key chain.) the paper tells
when it has been handed out (year and month) a number, which I used as the item
name and mostly the size.
Hope this helps, there will be more to come.